Circular-flanging machine.



Patented Au 27, mol. T. F. nowLANn, 1n. g CIRCULAR FLANGING MACHINE.

(Application led Jan. 23. WOL) 3 Sheets-Sheet l.

(No Model.)

Tus News Prrzns co. FHoToLfTHo.. wAsNmnmN, n. c.

Patented Aug. 27, I90I.

T. F. RWLAND, 1R. CIRCULAR FLANGING MACHINE.

(Application tiled Jan. 23, 1901.)

3 SheetsK-Sheet 2.

(No Model.)

unl'or, Inventar MNC/1f@ N0. 68l,5l2.

T. F. RowLAMn, 1n. CIRCULAR FLANGING MACHINE.

(Application led Jan. 23, 1901.),

(No Model.)

Patented Aug. 27, I90I.

3 Sheets-Sheet'3.

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UNITED STATES PATENT OFFICE;

THOMAS FITCH ROWLAND, JR., OF BROOKLYN, NEW YORK, ASSIGNOR TO THOMAS F. ROWLAND, SR., OF BOROUGH OF MANHATTAN, NEW

YORK, N. Y.

CIRCULAR-FLANGING MACHINE.

SPECIFICATION forming part of Letters VPatent No. 681,512, dated August 27, 1901. Application liled January 23, 1901. Serial No. 44,383. (No model.)

To a/ZZ whom it may concern:

Be it known that I, THOMAS FITCH ROW- LAND, Jr., a citizen of the United States, residing at the borough of Brooklyn, city of New York, in the county of Kings and State of New York, have invented a new and useful Circular-Flanging Machine, of which the following is a specication.

My invention relates to mechanism by which metal plates of considerable thickness may be flanged circularly; and the objects of my invention are to provide a machine by which such circular langing can be efficiently performed and to arrange the parts of the ma` chine so that circular flanges havingr different radii may be made by the same machine.

In general the features of my invention consist of a properly-shaped flanging hammer and anvil preferably carried on the same base and the hammer being operatedby any suitable power, a blank-carrying table upon which the plate to be flanged is carried into position between the hammer and anvil, the said table being pivoted and being capable of a circular movement in a horizontal plane, and an arrangement of parts whereby the position of the pivotupon which the blank-carrying table turns may be changed relative to the anvil, thus changing the radius of the arc described by the outer end of the blank-carrying table.

In the accompanying drawings, which form part of this specification, I have illustrated what now seems to me the best embodiment 0f my invention.

Figure l is a plan view of my machine from above. Fig. 2 is a vertical longitudinal section, the hammer and anvil being shown in side elevation; and Fig- 3 is a rear end view of the mechanism. v V Similar letters refer to similar parts throughout the several views.

A represents the blankcarrying table, which is pivoted on the vertical shaft O vand the outer periphery of which is preferably curved. The Outer endlof the blank-carrying table is supported on swiveled rollers a a, which travel over a bed-plate B, which is here shown as having a crescent-like shape and as supported on I-beams B' B'. Just beyond the outer end of the central portion of the table A and preferably on a level with its upper surface islocated the anvil S, in conjunction with which ,is Operated a hammer R, whichmay be driven by any suitable power and is here shown as operated by a hydraulic cylinder R. Preferably the anvil S and the hammer R are carried by the same base, vhere shown as T, but which may be of any other suitable shape. I prefer that the anvil AS shouldnotbe integral with the base T, but should be separable therefrom and be seated therein in any suitable manner. Thus anvils of dierent shape may be substituted as may be desirable in making circular fianges of different radii. It is also desirable to carry the inner portion of the base T upward close to the bottom of the outer portion of the table and in such portion of the base T to locate a roller W, the axis of which lies in the line drawn from the center of the anvil to the center of the pivot O. The diameter of this roller is such that the outer end of the table A rests lightly upon its periphery and is partially supported thereby when the blank is on the table. I provide this table and the shaft O, to which it is centrally pivoted, with suitable mechanism, to be hereinafter described, for giving the outer end of the table a circular movement. Thus dierent portions of the plate or blank carried by the table are successively brought between the hammer and the anvil and are acted upon, thereby forming a circular flange. It will lbe apparent, however, that other means and mechanism than that which I have illustrated and described herein may be used for causing the circular movement of the table. I also provide means, to be hereinafter described, whereby the shaft to which the blank-carrying table is pivoted and through which the circular movement is imparted to the table may be moved nearer to or farther from the anvil without altering the position of the table, thus shortening or lengthening the radius of the arc described by the periphery 0f the table. A slot A extends part of the way along the longitudinal axis of the table A, through which slot projects the top of the pivot-shaft O. A reinforcing-plate, as A2,

IOO

' the table A contiguous to the slot A'.

may, if desired, be attached to those partrlf e shaft C is carried by Vand free to rotate ina bearing or carriage D, which is supported and slides upon the top of suitable tracks, as E E. The carriage D consists of an upright sleeve or bearing, with a horizontally-extending platform D' D', which platform rests and slides upon the top of the tracks E E. The outer edge of this platform is preferably fia-nged, as at D4, to strengthen the platform. Seated upon the lower part of the carriage D is a second vertical sleeve D2, which is free lo rotate on its bearing. This sleeve is keyed to or otherwise connected with the shaft C. rlhe platform D' carries the bearings D5 D5 for the shaft G5. The entire carriage D and its several parts are capable of motion toward and away from the anvil S. The pivot-shaft C extends through the slot A' and through the vertical sleeves of the carriage D. Forged to or otherwise rigidly connected with the upper portion of the shaft C is a rectangular head C', which tits the slot A' and is free to be moved back-and forth along said slot, but cannot be turned therein. To the portion C4 of the shaft C just below the head C' is keyed or otherwise rigidly connected the sleeve D2. Preferably the lower part of the portion C4 of the shaft is threaded and fits into similar threads on the inner periphery of the lower portion of the sleeve D2. A washer and nut C5 are attached to the lower end of the shaft C to prevent the shaft rising in its bearings. A plate C5 is bolted to the lower portion o'f the carriage D, said plate extending under the tracks E E, thus preventing the rising of the entire carriage D. On the upper end of the shaft C where the same projects above the table A is fitted a large washer C2 and a nut C5. When the nut C3 and washer C2 are loosened, the entire carriage D and the pivotshaft C may by the suitable application of force be moved along the slot A' toward or away from the anvil S.

In the drawings I have shown the following means for moving the carriage and shaft:

F is a threaded shaft carried in the bearing F2, which is attached to the tracks E E. On the outer end of this shaft is a handwheel F', and on the inner end is a head F5, which head engages with the rear portion of the carriage D. The head F is contained in a box F4. By turning the hand-wheel to the right or left the carriage D is pushed toward the anvil S or pulled away from it, respectively. In this way the distance from the anvil S to the pivotal point upon which the table A turns may be lessened or increased and the radius of the circular flange made by the machine may be correspondingly changed. lVhen the carriage D and the pivot-shaft C have been moved to the desired point in the slot A', the nut C5 and the washer C2 are tightened, thus clamping the sleeve D2, the head C', and the table A tightly together and preventing any movement of the shaft along the slot. Power is then applied to rotate the shaft, and this mo-V tion is imparted through the head C' to the table A and to the blank carried by the table.

In the drawings I have shown the following means for imparting circular motion to the blank-carrying table A:

G is a motor of any suitable kind, which op erates the gear-wheels G and G2. This rotation is transmitted through the worm G5 and the worm-wheel G5 to the shaft G5, one end `of which is supported in the bearings G5, attached to the track E, and other portions of which are supported in the bearings D5 D5, connected with the carriage D. The shaft G5 is grooved along its length, as shown at G5. The worm L, having an interior feather,which projects into the groove G5, is fitted upon the shaft G5, said'worm being capable of longitudinal movement along the shaft G5 and being held in the bearings D5 D5, and thus comi pelled to take on such horizontal movement along the line of the shaft G5 as may be imparted to the carriage D. Projecting from the sleeve D2, which surrounds and isrigidly connected with the pivot-shaft C, is a quadrant M, having an exterior part m, which meshes with the worm L. When the motor G is set into operation, its power is transmitted to the shaft G5 and thence through the worm-wheel L to the quadrant M. As the quadrant travels in its circular path that motion is imparted through the head C' of the shaft C to the table A and to the blank or plate carried by the table.

IOO

In the present instance I have shown upon 5 the table a cylindrical blank X, having a projecting rim fr, which it is desired to ange circularly.

w' represents the position of the rim after it has been subjected to the flanging action of the hammer R.

a' illustrates a suitable clip for holding the cylindrical blank in position upon the table while it is being subjected to the Hanging action.

If the outer edge of the table A be made circular, its contour should correspond with the arc of a circle having a radius equal to the distance from the edge of the table to the pivot when the shaft Gis at its nearest point to the anvil. lVhen the pivot-shaft is in that position, not only will the middle point of the outer edge of the table be close to the anvil, but every other point on the edge of the table will in turn pass the anvil at the same distance. When the' pivot-shaft is moved farther away from the anvil, although the middle point of the outer edge of the table will always pass the anvil at the same distance, points lying toward the sides of the table will pass the anvil at varying distances. The blank, however, projects from the table sufficiently to be brought between the hammer and the anvil along the entire line of the proposed circular flange. In referring to the edge of the table being contiguous to the anvil I do not mean, therefore, that every point IIO on the edge of the table is, as the table rotates, brought equally near the anvil, but simply that the anvil is located in a general sense near or contiguous to the outer edge of the pivoted table, which may be of any desired shape and at varying distances from the anvil, the only essential feature being that it should be near enough to carry the blank between the hammer and anvil.

The tracks E E, the I-beams B B, and the base T are supported by the cross I-beams B2 B2 B2 or on any other suitable base.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In amachine for circularly Hangingplate metal, the combination of an anvil, a pivoted blank-carrying table, the periphery of which is contiguous said anvil, means forimparting to said table a rotary horizontal movement about the said pivot, and a Hanging-hammer coacting with said anvil, whereby protruding portions of a blank of plate metal may be successively flanged between said hammer and anvil along the arc of a circle.

2. In a machine for circularly Hanging plate metal, the combination of an anvil, a pivoted blank-carrying table, the periphery of which is contiguous said anvil, said table having a central longitudinal slot through which the pivot projects, means for moving said pivot along said slot either nearer or farther from the anvil, means for imparting to said table a rotary horizontal movement about said pivot, and a Hanging-hammer coacting with said anvil, whereby by adjustment of said pivot in said slot circular Hanges having different radii may be made.

3. In a machine for circularly Hanging plate metal, the combination of an anvil, a pivoted blank-carrying table the periphery of which is contiguous to said anvil and the outer portion of which has rolling supports, means for imparting to said table a rotary horizontal movement about said pivot, and a Hanginghammer coacting with said anvil.

4c. In a machine for circularly Hanging plate metal, the combination of an anvil, a pivoted blank-carrying table the periphery of which is contiguous said anvil, and the outer portion of which has rolling supports, attached to said table, means for imparting to said table a rotary horizontal movement about said pivot, a Hanging-hammer coacting with said anvil, and a base for said anvil in which is located a rolling support for the outer portion of said table, whereby the outer portions of said blank-carrying table may be rotatively supported while under the weight of the blank which is being circularly flanged as herein described.

5. Inamachine for circularly Hanging plate metal, the combination of an anvil, a pivoted blank-carrying table the periphery of which is contiguous said anvil, and the outer portion of which has rolling supports, means for imparting to said table a rotary horizontal Ymovement about said pivot, and a Hanginghammer coacting with said anvil, the said hammer and the said anvil being carried on the same base.

6. In amachine forcircularly Hanging plate metal, the combination of a Hanging-hammer, a removable anvil seated in the same base that carries the hammer, a pivoted blankcarrying table the periphery of which is contiguous said anvil, means for imparting to said table a rotary horizontal movement about said pivot, substantially as and for the purposes above set forth.

7. In a machine for circularly Hanging plate metal, the combination of an anvil, a pivoted blank-carrying table the periphery of which is contiguous said anvil, and which has a central longitudinal slot, a vertical pivot-'shaft which projects through said slot and on which the table rotates horizontally, a sliding carriage which supports said pivot-shaft andy in which it is free to rotate, means for moving said carriage and pivotshaft toward and away from the anvil, means for imparting to said table a rotary horizontal movement around said pivot, and a Hanging-hammer coacting with said anvil, substantially as and for the purposes above set forth.

8. In a machine for circularly Hanging plate metal, the combination of an anvil, a pivoted blank-carrying table, the periphery of which is contiguous said anvil and which has a central longitudinal slot, a vertical pivot-shaft which projects through said slot and on which the table rotates horizontally, the head of said pivot-shaft being rectangular and Htting in said slot, a sliding carriage which supports said pivot-shaft and in which it is free to rotate, means for rotating said pivot-shaft and said table horizontally, tracks upon which said carriage is supported, means for sliding said carriage on said tracks toward and away from said anvil, and a Hanging-hammer coacting with said anvil, substantially as and for the purposes above set forth.

9. In a machine for circularly Hanging plate metal, the combination of an anvil, a pivoted blank-carrying table the periphery of which is contiguous said anvil and which has a central longitudinal slot, a vertical pivot-shaft which projects through said slot and on which the table rotates horizontally, the head of said pivot being rectangular and Htting in said slot, a sliding carriage which supports said pivot-shaft and in which the shaft is free to rotate, a toothed quadrant rigidly connected with said pivot-shaft, a worm meshing with the teeth of said quadrant, said worm having bearings connected with said carriage, a shaft passing through the axis of said worm, means for imparting rotary motion to said shaft, tracks upon which said carriage is supported, means for sliding said carriage back and forth on said tracks toward or away from said anvil, and a Hanging-hammer coacting with said IIO anvil, substantially as and for theV purposes above set forth.

l0. In a machine for circularly Hanging plate metal, the combination of an anvil, a pivoted blank-carrying table, having a centrzil longitudinal slot, a pivot-shaft C having 5 a. head C, the carriage D, the quadrant M, the Worm L, the shaft G5, and means for ro tating the same, supporting-tracks for said carriage, means for moving said carriage back and forth on said tracks, supporting-rollers, a supporting-table, and a Hanging-hammer, 1o enacting with the anvil, substantially as and for the purposes above set forth.

THOMAS FITCH ROWLAND, JR.

Witnesses:

WARREN E. HILL, GEORGE ROWLAND. 

